Ermoceras is a genus of ammonite belonging to the Thomboceratidae family of the Middle Jurassic ( u Baj) found in deposites of central Arabia, Sinai, and Algeria with strong primary and secondary ribs and a single row of lateral tubercles; described as having a deep ventral groove [3]
Telermoceras, with low, depressed whorls, and Kosmermoceras with high, compressed whorls are considered subgenera of Ermoceras[3] Both are from the same time and region. Telermoceras has coarse secondary ribs and a deep umbilicus surrounded by large tubercles or spines. Kosmermocerashas fine sharp to coarse ribbing and a flattish venter
Ermocerass.l. is derived from Arkelloceras. Westermann (1965)[4] tentatively placed Ermoceras in the Thamboceratidae, based on sutural morphology, removing it from the Stephanoceratidae where it was previously included.
Referencesedit
^Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2014-05-28. {{cite journal}}: Cite journal requires |journal= (help)
^Westernamm ,G. E. G. 1965.Septal and Sutural Patterns in Evolution and Taxonomy of Thamboceratidae and Clydoniceratidae (M Jurassic Ammonitina).Jour of Paleontology 39(5)864-874, Sept
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ermoceras, genus, ammonite, belonging, thomboceratidae, family, middle, jurassic, found, deposites, central, arabia, sinai, algeria, with, strong, primary, secondary, ribs, single, lateral, tubercles, described, having, deep, ventral, groove, temporal, range, . Ermoceras is a genus of ammonite belonging to the Thomboceratidae family of the Middle Jurassic u Baj found in deposites of central Arabia Sinai and Algeria with strong primary and secondary ribs and a single row of lateral tubercles described as having a deep ventral groove 3 ErmocerasTemporal range Bajocian 1 PreꞒ Ꞓ O S D C P T J K Pg N Scientific classificationKingdom AnimaliaPhylum MolluscaClass CephalopodaSubclass AmmonoideaOrder AmmonitidaSuborder AmmonitinaSuperfamily StephanoceratoideaFamily ThomboceratidaeGenus ErmocerasSpecies 2 Ermoceras deserti Douville 1916 Ermoceras inerme Douville 1916Telermoceras with low depressed whorls and Kosmermoceras with high compressed whorls are considered subgenera of Ermoceras 3 Both are from the same time and region Telermoceras has coarse secondary ribs and a deep umbilicus surrounded by large tubercles or spines Kosmermocerashas fine sharp to coarse ribbing and a flattish venterErmoceras s l is derived from Arkelloceras Westermann 1965 4 tentatively placed Ermoceras in the Thamboceratidae based on sutural morphology removing it from the Stephanoceratidae where it was previously included References edit Sepkoski Jack 2002 Sepkoski s Online Genus Database Retrieved 2014 05 28 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help Paleobiology Database Ermoceras Retrieved 2017 10 19 a b Arkell et al 1957 Mesozoic Ammonoidea Treatise on Invertebrate Paleontology Part L Ammonoidea Westernamm G E G 1965 Septal and Sutural Patterns in Evolution and Taxonomy of Thamboceratidae and Clydoniceratidae M Jurassic Ammonitina Jour of Paleontology 39 5 864 874 Sept nbsp This Ammonitina related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Ermoceras amp oldid 1017612220, wikipedia, wiki, book, books, library,
